Henry fourness



(No Model.)

H. POURNESS.

REGENERATIVE GAS LAMP.

No. 362,830. Patented May 10, 1887.

fnvenar: Jienry [bur/was 3 71/66 t lbornqys NITED TATES ATENT FFiCEt REGENERATIVE GAS-LAMP.

EPECIFICATION forming part of Letters Patent No. 362,830, dated May 10, 1887.

Application filed July (l, 1886. Serial No. 207 "-28.

(No model.)

Patented in England June 16. 1885, No. 7,280; in France January 9, 1886, No. 173,439, and in Belgium January 11, 1856, No. 71,578.

ToaZZ whom it may concern.-

Be it known that I, HENRY FOURNESS, rcsiding at Manchester, county of Lancaster, England, and a subject of the Queen of Great Britain and Ireland, have invented certain Improvements in Regenerative Gas-Lamps, (for which I obtained a patent in Great Britain, No. 7,285), dated June 16, 1885,) of which the following is a specification.

This invention relates to regenerative gaslamps in which the gas to be consumed, and also the air supplied to the flame, are heated in the lamp itself.

In myimproved lamp the gas issues through a burner having horizontal openings, the resulting disk shaped flame being fed with heated air from above and beneath. I pro vide means for regulating the supply of air from beneath.

In the accompanying drawings, Figure 1 is an elevation of the improved lamp. Fig.2 is a vertical section. Fig. 3 isa plan view of the top of the lamp, the upper shield being removed to show the circle of tubes through which air enters to the upper regenerative chamber. Fig. 4 is a view of a slide at the bottom of the lamp, which can be moved round to admit a lighted taper. Fig. 5 is a view of the lamp surrouiuled by awind-guard, such as is necessary when the lamp is in an exposed situation.

The gas to be consumed is supplied to the burner a through the central pipe, I), as indicated by the arrows marked 1 in Fig. 2. The said burner is composed of two bell-shaped halves, a and a, which are turned both internally and externally and are screwed tightly together upon the lower end of the threaded gassupply pipe I), the two halves thus composing a cha1nber,into which gas is admitted from the pipe I) through the apertures 0, as shown by the course of the arrows marked 1. It is important that the said apertures 0 should be in about the relative position shown, as I have found that when these apertures are brought too nearly opposite to the horizontal openings (Z in the upper half, a, of the burner the flame is apt to be irregular in shape. By isolating the apertures c in the manner shown the gaspressure is diffused and equalized in the chant ber before issuing from the horizontal openiugs d. The lower part of the burner is surrounded by a tube, 0, the upper edge of which is just beneath the burner-openings d, while the lower edge rests upon pins j", which project from the cup-shaped upper end of another tube, t which projects through the bottom of the lamp and is open to the atmosphere, as shown.

It will be observed that at the junction between the upper tube, 0, and the lower tube, 9, an annular space exists for the passage of air, as indicated by the arrows, and also that a similar annular space for a similar purpose is left between the upper part of the tube 0 and the burner. A wire-gauze partition, m, is placed within the tube 0. The tube 6 is screwed on the stem 1, and the said stem t screws into the bottom of the lower-half, a, of the burner. The lower tube, 9, is held in position against the upper tube, 0, by a wing-nut, j, which screws upon the lower end of the stem 1:, so that the respective tubes are held securely in their proper positions relatively to the burner.

The burner is surrounded, as shown, by a glass globe or shield, 76, which is held at the foot between the outer ring, Z, and the inner nut, m. The outer ring, Z, is shown separately in plan at Fig. 4-. It has two spaces covered by a revolving shutter or slide, a, the remainder being perforated, as shown, for the admission of air. The slide a can be moved round by the catch 0, so as to uncover the spaces and allow of the introduction of a taper to light the gas.

The upper part of the lamp consists of a regenerative chambcr, p, which is situated just above the burner and is screwed or otherwise attached to the gassupply pipe I). The upper part of the chamberp is connected to the curved top q of the lamp by a circle ot'air-tubes, r, as shown in the plan view, Fig. 3, and above the said curved top q is a siniilarly-ci'trvcd shield, s, which slips over the chimneyt and is sustained a certain distance apartfrom the curved top by means of a thimble, a, so as to leave an annular space, 2;, for the passage of air, as indicated. The annular opening at the outer The air enters between the shield s and the top q, as shown by the arrows marked 2, and flows through the tubes 1* into the ohamberp, from whence it is discharged through a wire'gauze or other perforated or porous partition, It, so as to inpinge upon the upper side of the disk-shaped flame y.

It will be observed that the air-tubes rstand directly in the path of the hot gases and products of combustion, whose direction of escape to the chimneyt is indicated by the arrows marked 5. The tubes thereby abstract a con siderable portion of the heat from the said products and transfer it to the air flowing through them, as described. The outer circumference of the chamber 1) is polished, plated, painted, enameled, or otherwise treated, so as to act as a reflector. An additional reflecting-ring, z, is also sustained at the upper part of the lamp. WVhen the lamp is in operation, the gas is heated in its passage down the pipe b (which is encircled by the chimney) and becomes ignited on issuing from the horizontal openings in the burner, so as to form the disk-shaped flame y. (Shown in Fig. 1.) The products of combustion escaping in the direction of the arrows marked 5 impinge upon the tubes 1' and heat the air flowing through the tubes, as shown by the arrows 2. The air is further heatedin the chamber 1) and issues through the wiregauze h to impinge upon the upper side of the flame. The air to the lower side of the flame enters the lamp partly through the perforations in the ring Z, as shown by the arrows 4, and partly through the tube 9, as shown by the arrows 3. The air which enters the tube 9 is heated withinthe said tube, and also within the tube 6, from whence it issues to the flame through the annular space between the tube 6 and the burner. Part of the air entering through the ring Z proceeds toward the outer edge of the flame,which it sustains and brightens, while part of the same air-supply enters the tube 6 through the annular space at the junction between the two tubes 0 and 9, all as shown by the arrows. The air entering through the perforations in the ring I is warmed by the heat contained within the glass globe or shield 70. To regulate the air entering the tube 9, I provide a stop, A, which is screwed upon the stem i, and which can be approached toward or withdrawn from the opening at the bottom of the tube g, so as to increase or diminish the supply of air at will.

Fig. 5 is a sectional view of the wind-guard I employ to protect the lamp when used in an exposed situation. The said wind-guardconsists mainly, as shown, of an upper inclined or curved portion, B, and an under similarly inclined or curved portion, O,which approach each other at an angle toward the point D, but do not touch, so that a narrow annular conical opening is left between the upper and lower partitions,through which air is admitted to the interior of the casing. The bottom G of the casing has an orifice large enough to admit the glass globe or shield of the lamp, and presents a ledge, upon which the rim to of the lamp finds support. A second outer glass shield, F, is secured to the bottom G of the casing,so as entirely to inelose the lamp. Openings H are formed in the bottom G, so as to allow the air to pass, as indicated by the arrows, from the interior of the wind-guard into the space between the glass shields F and 70 to the bottom of the lamp for supplying the under side of the flame, as hereinbefore described. The regenerative chamber 9 of the lamp is supplied with air from the interior of the wind-guard, as shown by the arrows. The top of the windguard is formed with inclined and curved battlecaps K L, as shown, which prevent downdrafts, while not interfering with the escape of the products of eombustion, which are indicated by the arrows marked 5. The bottom of the glass shield F of the wind-guard is fitted with a cap, I, which is secured by a bayonet-joint or snapring arrangement to the projecting sleeve J The cap I can be readily removed, when desired, for lighting the lamp, and for other purposes.

I claim as my invention- 1. The combination of the inclosingglobe and burner of a regenerative gas lamp, the said burner having an annular row ofopenings, (l, with a tube, 0, around the lower part of the burner, and a tube, g, supporting the said tube 0 and extending to the outside of the globe, substantially as set forth.

2. The combinationof the burner and inclosing-globe of a regenerative gas-lamp, with a tube, 9, extending through the bottom of the globe to supplyair to the flame, a stem, 2', passing through the tube, and an adjustable stop, A, thereon to regulate the supply of air, all substantially as described.

3. The combination of a regenerative gas lamp having an inclosing-globe, with a windguard for the said lamp, consisting of the curved shields B G, leaving an intermediate air-space, a bottom, G, having air-openings, and a glass shield, F, all substantially as described.

4:. The combination of a regenerative gaslamp havinga burner and inclosing-globe,with a windguard for said lamp, consisting of the curved shields B O, leaving an intermediate air-space, battle-plates K L at the top, a bottom plate, G, having airopenings, a glass globe, F, and cap I, all substantially as specitied.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY FOURNESS.

Witnesses:

DAVID FULTON, EDWARD L. DUTTON.

IOO 

